Astrophysicist and popular science communicator Neil deGrasse Tyson posted a message and short video on his Facebook page today:
The video is interspersed with quick clips of news and political debates while Tyson speaks about our state of scientific literacy. In one clip, Vice President Mike Pence argues “let us demand that educators around America teach evolution not as fact, but as theory.”
Tyson’s core message revolves around the notion that when it comes time to make decisions on science or important matters that affect us all, people have lost the ability to judge what is true and what is not. Tyson calls this a “recipe for the complete dismantling of our informed democracy.”
A timely message a few days before the upcoming March of Science. Here is the video:
Millions of years ago, the first eyes calmly yawned at the sun’s light that massaged the earth. These primitive eyes did very little but detect light that helped organisms to establish day/night cycles and allowed them to coordinate behavior. Throughout time, eyes became more complex as organisms evolved more complex bodies and behaviors. This led to a gradual series of fine-tuned focusing muscles, better optics, and morphological changes that provide a survival advantage to animals in detecting prey – or predator.
Below are some resources and videos regarding the evolution of the eyes.
This video, “Eyes,” is part of the “Evolve” History Channel 11-part series that looks at the evolutionary origins of a particular trait. “Eyes” is the evolutionary story of how the eye was molded into the exquisite complicated organ we see today.
Here’s a TED-Ed animated story on “The Evolution of the Human Eye” by Joshua Harvey.
“To suppose that the eye with all its inimitable contrivances for adjusting the focus to different distances, for admitting different amounts of light, and for the correction of spherical and chromatic aberration, could have been formed by natural selection, seems, I confess, absurd in the highest degree…The difficulty of believing that a perfect and complex eye could be formed by natural selection , though insuperable by our imagination, should not be considered subversive of the theory.” –Charles Darwin